Abstract: A method for diagnosing degradation of a fuel cell stack, including: S10, qualitatively determining a degradation type of the fuel cell stack according to a voltage-current curve of the fuel cell stack; S20, quantitatively measuring parameter values of each of individual cells of the fuel cell stack according to the degradation type, and quantitatively determining a degradation degree of each of the individual cells according to the parameter values; S30, determining a uniformity degradation degree among the individual cells of the fuel cell stack according to a non-uniformity degree of a voltage distribution of the individual cells. By qualitatively determining the degradation type of the fuel cell stack, the degradation condition of the entire fuel cell stack may be obtained.

Abstract: A flexible battery connection structure is provided. A flexible battery connection structure according to an exemplary embodiment of the present invention comprises: a plurality of flexible batteries electrically connected to each other, disposed along a longitudinal direction, and each including a positive electrode terminal and a negative electrode terminal protruding from one end portions; a connection member disposed at positions corresponding to the positive electrode terminal and the negative electrode terminal to protect the positive electrode terminal and the negative electrode terminal and connect two flexible batteries adjacent to each other; and a housing configured to surround the plurality of flexible batteries connected to each other through the connection members.

Abstract: A power storage system includes a power storage element; and a voltage detecting unit configured to detect an output voltage of the power storage element. The power storage element and the voltage detecting unit are formed by integrally forming structural materials of the power storage element and the voltage detecting unit on the same base material, without any point bonding portions formed by solder mounting.

Abstract: A terminal cover includes a cover body equipped with a curved portion and a base portion. The curved portion has formed therein a pair of claws diametrically opposed to each other. The claws are arranged at an interval away from each other. The interval is selected to be smaller than the width of the terminal and increased by elastic deformation of the cover body arising from installation of a terminal in the terminal cover, so that the claws retain the terminal. This structure enables the terminal cover to be simple and small-sized and facilitates installation of the terminal in the terminal cover without being scraped by the terminal when inserted into the terminal cover.

Abstract: A battery pack is provided which includes an enclosure. The enclosure includes a battery cell compartment and a vent. The battery cell compartment is a sealed compartment, except for the vent, and the vent facilitates pressure-induced venting of gas from the battery cell compartment. One or more battery cells are disposed within the battery cell compartment, and the battery pack also includes a filter system associated with the enclosure. The filter system filters the pressure-induced venting of gas from the battery cell compartment resulting from a thermal runaway event at a battery cell of the one or more battery cells within the battery cell compartment of the enclosure.

Abstract: The present invention aims to provide an electrolyte solution that suppresses generation of gas. The electrolyte solution of the present invention includes a non-aqueous solvent (I) containing one or both of a fluorinated cyclic carbonate and a fluorinated acyclic carbonate; an electrolyte salt (II); and a compound (III) represented by the following formula (1): wherein R1 is a C1-C20 linear or branched alkenyl or alkyl group or a C3-C20 alkyl group having a cyclic structure; m is 0 or 1; R2 is a C1-C20 linear or branched alkylene group or a C3-C20 alkylene group having a cyclic structure, R1 and R2 each may have an oxygen atom between carbon atoms if R1 and R2 each have two or more carbon atoms, but the oxygen atom is not adjacent to another oxygen atom.

Abstract: The present invention relates to a method for manufacturing a battery protection device and a battery protection device manufactured by the method, and more particularly, a method for manufacturing a battery protection device and a battery protection device which reduce a defect rate and also the number of processes, thus enhancing productivity.

Abstract: The invention relates to an energy storage module (10) comprising a plurality of energy storage assemblies (100) positioned side by side, and a rigid enclosure (12) intended for surrounding the storage assemblies, each assembly including at least one side wall closed at each end by an end surface, wherein the storage assemblies are electrically connected in pairs by conductive strips (110) extending over at least one end surface of each assembly, the strips being arranged such that one strip connects a first end surface of at least one predetermined assembly to an end surface of a first adjacent assembly and a second strip connects a second surface of the predetermined assembly to an end surface of a second adjacent assembly.

Abstract: A battery cartridge, a battery carrier module, and a battery charging system are provided. The battery cartridge includes a carrier case and a dismantable assembly. The battery cartridge has an accommodating space for accommodating a rechargeable battery. The accommodating space has a maximum width and a maximum depth, the rechargeable battery has a predetermined width and a predetermined depth. The dismantable assembly is disposed in the accommodating space of the carrier case. The dismantable assembly includes a width adjustment part and a depth adjustment part. The maximum width and the maximum depth of the accommodating space are respectively greater than the predetermined width and the predetermined depth of the rechargeable battery, and one of the width adjustment part and the depth adjustment part is disposed between the carrier case and the rechargeable battery so as to maintain the relative position between the rechargeable battery and the carrier case.

Abstract: The disclosed embodiments relate to the design of a portable and cost-effective fuel cell system for a portable computing device. This fuel cell system includes a fuel cell stack which converts fuel into electrical power. It also includes a fuel source for the fuel cell stack and a controller which controls operation of the fuel cell system. The fuel system also includes an interface to the portable computing device, wherein the interface comprises a power link that provides power to the portable computing device, and a bidirectional communication link that provides bidirectional communication between the portable computing device and the controller for the fuel cell system.

Abstract: The present invention provides a lithium secondary battery, wherein a peak at 167 to 171 eV and a peak at 160 to 164 eV are present in XPS analysis of sulfur on a negative electrode surface (S2p), and P169/P162 is in the range of 0.7 to 2.0 wherein the P169/P162 is the ratio between the intensity of the peak at 167 to 171 eV (P169) and the intensity of the peak at 160 to 164 eV (P162).

Abstract: An object of the invention is to provide a nonaqueous electrolytic solution which is capable of bringing about a nonaqueous-electrolyte secondary battery improved in initial charge capacity, input/output characteristics, and impedance characteristics. The invention relates to a nonaqueous electrolytic solution which comprises: a nonaqueous solvent; LiPF6; and a specific fluorosulfonic acid salt, and to a nonaqueous-electrolyte secondary battery containing the nonaqueous electrolytic solution.

Abstract: To provide a terminal-attached plate, which is capable of providing a connector fitting portion at only one end portion of a battery module, and is capable of preventing the battery module from being made thick, and to provide a plate assembly, and a battery module. A battery module includes a single-cell stack and a plate assembly including stacked plates turned back alternately and connected to an end of the stack, each plate including a joining portion, a plate supporting portion, a terminal including a connecting portion connected to a tab of the battery and a contact portion connected to a connector, and a hood member protecting the contact portion, wherein the hood member is disposed at a position offset to an end portion side of the plate from a center in a longitudinal direction of the plate.

Abstract: A rechargeable battery includes an electrode assembly charging and discharging a current, a case in which the electrode assembly is installed, a cap plate coupled to an opening of the case, an electrode terminal provided on the cap plate, and an external insulator receiving the electrode terminal from the outside of the cap plate. The electrode terminal includes a first plate terminal electrically connected to the electrode assembly, a second plate terminal separated from the first plate terminal, and a fuse portion connecting the first plate terminal and the second plate terminal.

Abstract: A battery cell design is disclosed that provides a predictable pathway through a portion of the cell (e.g., the cell cap assembly) for the efficient release of the thermal energy that occurs during thermal runaway, thereby reducing the chances of a rupture in an undesirable location. Furthermore the disclosed design maintains the functionality of the cell cap as the positive terminal of the cell, thereby having minimal impact on the manufacturability of the cell as well as its use in a variety of applications.

Abstract: A battery pack including a plurality of unit cells, the battery pack including: a plurality of unit cells, a case accommodating the plurality of unit cells, and a first insulation structure covering a first external surface of the case. A plurality of first guide pins project from the first external surface of the case. A plurality of first coupling holes into which the first guide pins are respectively inserted is formed in the first insulation structure.

Abstract: Disclosed herein is a secondary battery pack including a battery cell, a protection circuit module (PCM) assembly having a connection member (A), an insulative mounting member having a connection member (B) embedded therein, and an insulative cap. The connection member (B) is coupled to a second electrode terminal of the battery cell by welding, such that the connection member (B) is electrically connected to the second electrode terminal of the battery cell, in a state in which the insulative mounting member is mounted on the battery cell. The connection member (A) is coupled to a first electrode terminal of the battery cell upward from a PCM, such that the connection member (A) is electrically connected to the first electrode terminal of the battery cell. The electrical connection between the PCM assembly and the connection member (B) is achieved in a physical contact fashion.

Abstract: A nine volt battery includes terminals exposed on a top surface of the battery and can easily accidentally come into contact with a conductive material. A device is provided for preventing creation of a low resistance circuit by a nine volt battery includes a safety cover configured to securely adhere to at least one of two terminals of the battery, thereby preventing creation of a circuit through the battery.

Abstract: A core pack manufacturing apparatus for preventing or substantially preventing an iron from contacting a cell or a protective circuit part in a process of soldering a connection tab of the cell to a connection terminal of the protective circuit part. A core pack manufacturing apparatus for soldering a connection tab connected to a cell to a connection terminal of a protective circuit part includes a cap including a first cover configured to cover the cell, and a second cover extending from a side of the first cover and configured to cover the protective circuit part, the second cover having an opening part configured to expose the connection tab and the connection terminal through the second cover for soldering.

Abstract: A module terminal includes a terminal main body which is made of a metal plate and an insulative interference preventive member which is mounted on the terminal main body. In the terminal main body, one end portion is connected electrically to an electrode of a battery pack, and a female screw portion is formed integrally on a terminal portion to penetrate therethrough. While a distal end of a male screw faces an end face of the battery pack when the male screw into the female screw portion, the interference preventive member is disposed therebetween.

Abstract: A battery tray includes a bottom plate and opposing end walls extending upward from the bottom plate. Each end wall includes a plurality of inward spaced battery connectors. A retainer is releasably secured to the bottom plate and is configured to retain batteries disposed on the bottom plate and abutting the end walls. At least one printed circuit board in an end wall includes circuitry connecting the battery connectors to the electrical output.

Abstract: Storage batteries connected in series in an uninterruptable or back-up power supply system may have voltage potential differences between exposed terminals or conductors that exceed safety limits. A demountable insulating shield having apertures may be positioned so that the series string may be broken into a plurality of series sub-strings having a lesser potential difference has a cover over the aperture through which the series string configuration may be connected and disconnected. The cover may he an insulating material removably fastened to the insulating shield or a sliding cover that is captivated to the insulating shield. When the series string has been divided in to the sub-strings, the insulating shield may be demounted from the structure housing the batteries so that the batteries or their connections may be serviced.

Abstract: A secondary battery including an electrode assembly; a case accommodating the electrode assembly; a cap plate coupled with the case; a terminal electrically connected to the electrode assembly and extending through the cap plate; and a safety member between the terminal and the cap plate, the safety member having an apex contacting one of the cap plate and the terminal to electrically connect together the cap plate and the terminal.

Abstract: Disclosed herein is a secondary battery pack including a battery cell having an electrode assembly mounted in a battery case together with an electrolyte, the battery case having an open top sealed by a top cap, a protection circuit module having a protection circuit for controlling overcharge, overdischarge, and overcurrent of the battery cell, an insulative mounting member constructed in a structure in which the protection circuit module is loaded at a top of the insulative mounting member, the insulative mounting member being mounted to the top cap of the battery cell, and an insulative cap coupled to an upper end of the battery cell for covering the insulative mounting member in a state in which the protection circuit module is loaded on the insulative mounting member, wherein the top cap is provided with a pair of protrusion-type electrode terminals (a first protrusion-type electrode terminal and a second protrusion-type electrode terminal) connected to a cathode and an anode of the electrode assembly, r

Abstract: A dual-contact battery pack comprises a housing, a plurality of battery cells located within the housing, a first set of contacts and a second set of contacts coupled to the housing and to the plurality of battery cells. The dual-contact battery further comprises a first control circuit coupled between the plurality of battery cells and the first set of contacts and a second control circuit coupled between the plurality of battery cells and the second set of contacts. The first and second sets of contacts enable the dual-contact battery pack to selectively switch from a first state which prevents current from flowing from the plurality of battery cells to the respective first and second set of contacts to a second state in which current flows from the plurality of battery cells to the respective first and second set of contacts in response to the respective first and second control circuits.

Abstract: Each of electric cells constituting a battery assembly is provided with external terminals. The upper end of the electric cell is covered with an upper cap surrounding the external terminals whereas the lower end of the electric cell is covered with a lower cap. The electric cell is held between an upper holder and a lower holder via the upper cap and the lower cap. A plurality of bus bar openings for allowing a bus bar extending from the external terminals to be inserted therethrough are formed in the upper cap in such a manner as to penetrate in a thickness direction. Thus, it is possible to increase the degree of freedom of the arrangement of the electric cells in the battery assembly.

Abstract: According to an embodiment, a battery includes a cap plate, the cap plate having an opening penetrating therethrough and having at least a first protrusion extending from a first side, an electrode terminal extending through the opening in the cap plate, a collector extending from the electrode terminal, and a gasket interposed between a portion of the electrode terminal and the first side of the cap plate, the first protrusion extending through the gasket and the collector.

Abstract: Disclosed herein is a secondary battery pack including a battery cell, a protection circuit module (PCM) assembly having a connection member (A), an insulative mounting member having a connection member (B) embedded therein, and an insulative cap. The connection member (B) is coupled to a second electrode terminal of the battery cell by welding, such that the connection member (B) is electrically connected to the second electrode terminal of the battery cell, in a state in which the insulative mounting member is mounted on the battery cell. The connection member (A) is coupled to a first electrode terminal of the battery cell upward from a PCM, such that the connection member (A) is electrically connected to the first electrode terminal of the battery cell. The electrical connection between the PCM assembly and the connection member (B) is achieved in a physical contact fashion.

Abstract: A secondary battery includes an electrode assembly; a case accommodating the electrode assembly; a cap plate sealing the electrode assembly within the case; a terminal plate on the cap plate and electrically connected to the electrode assembly; and an insulation member between and contacting the cap plate and the terminal plate, wherein the insulation member has a peripheral flange that extends away from the terminal plate.

Abstract: An external terminal assembly for establishing a connection between a battery pack and an electrical connector of an external device and a battery pack including the same, the external terminal assembly including an external terminal, the external terminal being electrically connectable to the electrical connector of the external device; a terminal holder on a protection circuit substrate, the terminal holder fixing a position of the external terminal; and a top case covering the protection circuit substrate and the terminal holder, the top case including holes exposing the external terminal.

Abstract: There are provided an electric cell group of a plurality of electric cells 11 with positive and negative electrode terminals, connecting members for connecting adjacent electrode terminals, and a wiring module assembled to the electric cell group. The wiring module includes a plurality of voltage detection terminals connected to the ends of a plurality of electric wires W for detecting the conditions of the electric cells, a plurality of retainer portions retaining the detection terminals, and interval adjusting device provided between a plurality of adjacent retainer portions for adjusting the intervals between the retainer portions.

Abstract: A protection cover attachment structure of a battery-mounted fusible link unit includes a fusible link unit including a resin housing with a slide guide groove and a protection cover including an upper surface cover and side surface covers. The upper surface cover covers the upper surface of the resin housing and a battery post and a battery terminal. The side surface covers extend downward from a peripheral edge of the upper surface cover and cover the wire-attached terminals connected to the terminal sections of the fusible link unit and upper part of wires which are connected to the terminals and extended downward. When the protection cover is put over the resin housing, the slide guide grooves restricts the position of the protection cover and guides a side edge of at least one of the side surface covers downward.

Abstract: A battery module includes a plurality of battery cells aligned in one direction, each battery cell having electrode terminals, a bus bar coupling the electrode terminals, a terminal shielding unit covering the bus bar, the terminal shielding unit including an upper shielding unit and a lower shielding unit with at least one opening, a pair of first and second end plates arranged outside outermost battery cells, and at least one coupling member coupling the first and second end plates.

Abstract: In a battery pack, an electrostatic protective part is disposed on a side surface of a protective circuit module so as to protect the protective circuit module from static electricity introduced from the outside, thus improving the reliability of a battery. The battery pack includes a battery cell, a protective circuit module electrically connected to the battery cell and including an electrostatic protective part on a side surface thereof, and a case accommodating the battery cell and the protective circuit module. The electrostatic protective part is formed by applying solder on a conductive foil.

Abstract: An intrinsic safety approach is provided for a battery powered communication device. Sparking is prevented at radio contacts during attachment and removal of a battery (104, 204, 304, 404) from a radio (102, 202, 302, 402) through the use of switches (112, 212, 312, 412/424) to isolate the radio capacitors from the radio contacts and/or dissipate energy from the radio capacitor through a discharge resistor (214, 314, 414).

Abstract: A terminal of a rechargeable battery having a case and an electrode assembly inside the case includes a current collecting terminal electrically connectable to the electrode assembly inside the case and for protrusion outwardly from the case, a terminal plate for positioning outside the case, the terminal plate being coupled to the current collecting terminal, and a contact spring for positioning between the outside of the case and the terminal plate, the contact spring being coupled to the current collecting terminal, the contact spring having a predetermined region extending through the terminal plate.

Abstract: A battery pack that electrically connects a terminal cover, which is attached to a terminal base, and a battery pack case even if the terminal cover and case are not in direct contact with each other. The case is formed from a conductive material and accommodates a battery. The terminal base is formed from a non-conductive material and attached to the case. The terminal cover is formed from a conductive material and attached to the terminal base. A conductor formed from a conductive material comes in contact with both of the terminal cover and the case.

Abstract: Provided is a secondary battery including an electrode assembly, a case accommodating the electrode assembly, a cap assembly, and an electrode terminal electrically connected to the electrode assembly. The cap assembly includes a cap plate disposed over an upper opening of the case. The electrode terminal protrudes outwardly from a terminal hole of the cap plate. The electrode terminal includes a collecting terminal extending through the terminal hole of the cap plate, a terminal plate coupled with the collecting terminal, and a coupling terminal coupled with the terminal plate. The cap plate includes a short-circuit hole therein. The short-circuit hole is at a position corresponding to a position of the coupling terminal. A short-circuit member covers the short-circuit hole.

Abstract: A lithium-ion battery package can include flexible foil, a first conductor patch exposed on the flexible foil, a second conductor patch exposed on the flexible foil, a folded orientation of the flexible foil that includes a contact between the first conductor patch and the second conductor patch, and an expanded orientation of the flexible foil that includes a space between the first conductor patch and the second conductor patch. Various other apparatuses, systems, methods, etc., are also disclosed.

Abstract: A battery pack for an electric or hybrid vehicle having battery connectors for connecting batteries in series and a battery connector are disclosed that reduces the risks of potential electric shocks during assembly, servicing and in emergency situation. The battery connector includes an interrupter having disconnect capabilities in the event of the vehicle being involved in a collision.

Abstract: A battery terminal includes a housing, a bus bar, a first connector, a second connector and a current detector. The housing is made by resin. The bus bar is integrally provided with the housing. The first connector is provided on the bus bar and is adapted to be connected with a battery. The current detector is provided on the bus bar. The second connector is provided on the bus bar. The second connector is adapted to be connected with a harness, and is disposed at a position offset from a straight line passing the first connector and the current detector.

Abstract: A battery module including a plurality of battery cells, each of the battery cells including a terminal such that the plurality of battery cells provide a plurality of terminals, wherein a terminal of one of the battery cells is connected to a terminal of an adjacent battery cell with a connecting member; a top plate on the plurality of battery cells, the top plate including an opening corresponding to a position of the terminals connected by the connecting member such that the terminals connected by the connecting member extend therethrough, and a terminal cover detachably covering the opening of the top plate, the terminal cover including a release that selectively detaches the terminal cover from the top plate.

Abstract: A battery for use in a power tool, including a battery housing, at least one battery cell in the battery housing, a pivoting member at least partially enclosed within the battery housing which moves between a latched position and an unlatched position, and a biasing device associated with the pivoting member for urging the pivoting member towards the latched position.

Abstract: Disclosed herein is a stacking or stacking/folding type electrode assembly of a cathode/separator/anode structure, wherein the electrode assembly is constructed in a structure in which tabs (electrode tabs), having no active material applied thereto, protrude from electrode plates constituting the electrode assembly, electrode leads are located at one-side ends of the stacked electrode tabs such that the electrode leads are electrically connected to the electrode tabs, and the electrode leads, joined to the electrode tabs, have rounded ends. An electrochemical cell including the electrode assembly is also disclosed.

Abstract: A secondary battery includes a bare cell comprising an electrode assembly; a protection circuit module electrically coupled to the bare cell; an upper case including a first case and a second case opposite to the first case joined together, the upper case generally encompassing the protection circuit module; and at least one support rib on at least one of the first case and the second case supporting the protection circuit module.

Abstract: A protective cap for a terminal connection of a battery, a motor vehicle battery, and a battery cable are provided. The protective cap includes a first layer of a non-conductive layer material and a second layer superimposed on the first layer. The first layer and the second layer surround an interior space configured to receive the terminal connection in a shell-shaped manner. The first layer faces the terminal connection and consists of a material with a first modulus of elasticity E1, and the second layer faces away from the terminal connection and consists of a material with a second modulus of elasticity E2, wherein E1<E2.

Abstract: In accordance with an example embodiment of the present invention, an apparatus, comprises an energy storage device having an interface and at least one terminal, the interface having first and second surfaces, the first surface having at least one first surface opening and the second surface having at least one second surface opening, wherein the at least one first surface opening allows access to the at least one terminal, wherein the at least one second surface opening allows access to the at least one terminal, and wherein the at least one first surface opening is distinct from the at least one second surface opening.

Abstract: A feedthrough for a battery having a first terminal element (1) and a second terminal element (2), which are at different electric potentials. The first terminal element (1) and/or the second terminal element (2) has (have) have a coating (3) which is produced by chemical vapor deposition and which prevents a short circuit between the first terminal element (1) and the second terminal element (2). Furthermore, a simple and inexpensive method for manufacturing such a coating is provided. The invention also relates to a battery having at least one such feedthrough.

Abstract: A secondary battery includes an electrode assembly and an electrolyte solution in a case, a current collection unit in the case and electrically connected to the electrode assembly, a cap plate coupled to an open side of the case for sealing the case, an electrode terminal penetrating the cap plate through a terminal hole to be exposed to an exterior of the case, the electrode terminal being electrically connected to the current collection unit, and an insulation unit separating the cap plate from the electrode terminal and the current collection unit, the insulation unit being configured to block penetration of the electrolyte solution therethrough toward the cap plate.

Abstract: To provide a terminal-attached plate, which is capable of providing a connector fitting portion at only one end portion of a battery module, and is capable of preventing the battery module from being made thick, and to provide a plate assembly, and a battery module. A battery module includes a single-cell stack and a plate assembly including stacked plates turned back alternately and connected to an end of the stack, each plate including a joining portion, a plate supporting portion, a terminal including a connecting portion connected to a tab of the battery and a contact portion connected to a connector, and a hood member protecting the contact portion, wherein the hood member is disposed at a position offset to an end portion side of the plate from a center in a longitudinal direction of the plate.